Taking place sometime every year (the date is never officially disclosed), somewhere in Warburg, TN (the official location isn't revealed until the last minute, even to the racers), it's the brainchild of a local dude named Gary Cantrell. He was inspired when he found out that after Martin Luther King Jr.'s assassin, James Earl Ray, escaped from the now-abandoned Brushy Mountain State Penitentiary, he only made it eight miles through the woods after running for nearly 55 hours. Cantrell figured he could do at least 100mi through the same terrain in that time. Well, it turns out he totally couldn't. Undaunted, however, he's been orchestrating attempts for other people to mostly fail at the same task since 1986.